CN2454087Y

CN2454087Y - Optimized pipe-wrench self-adjusting adjustable ratchet screwing-up spanner

Info

Publication number: CN2454087Y
Application number: CN 00241807
Authority: CN
Inventors: 李育谕
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-06-22
Filing date: 2000-06-22
Publication date: 2001-10-17
Anticipated expiration: 2010-06-22

Abstract

The utility model relates to an optimized pipe-wrench self-adjusting adjustable ratchet screwing-up spanner which is composed of a toothed plate 1, a riveting pin 2, a hook seat 3, a pin shaft 4, a spring 5, a screw nail 6 and a wrenching bar. When in use, the utility model can automatically clamp workpieces with different sizes without adjusting a spiral knob and can rotate a hand lever according to a direction to screw down the workpieces, and the toothed plate 1 can slide and jump edges when the utility model is reversedly rotated. The utility model can realize self-regulation and ratchet screwing for various-type nuts, screw bolts and water pipe connecting joints.

Description

Optimize the movable sour jujube of self-regulated pipe vice and twist spanner

The utility model belongs to hardware ﹠ tools, can be used for twisting nut, bolt, running water pipe, no adjustable screw turn-knob, the workpiece that size differs can be clamped automatically, and, workpiece can be tightened by a direction turning handle, its backward rotation, tooth plate are just skidded and are jumped the limit, can be with folder with always moving adjusting.

Existing monkey wrench, total and workpiece is gapped during clamping work pieces, usually pull the base workpiece.See that again approximate patent has CN85201859 both at home and abroad, US4594922, spy open clear 53-117900[4], clear 53-45799[4], GM8316654, CN85201400, CN87215074U, CN892125233.Preceding two kinds resemble and overlap workpiece the double offset ring spanner; Though middle four kinds can enter workpiece in the side, the application specification size is all very little; Though the back two kinds of application specification sizes big, because of the wrenching bar head excessive, very impracticable.The planform that these products are identical is: the working flank of wrenching bar head does not all clip to head, and starting vacancy size is all arranged, and the wrenching bar head has to be used for escaping with the hook seat near 1/3rd flank of tooth center fluting and collides.In addition, also have three system teeth to come three-dimensional to sting the style of easily hindering workpiece mutually, the style of locating to join arc notch in the application sets of stretch bending on hook seat medial surface is also arranged.

The utility model constitutes (see figure 1) by tooth plate 1, screw 2, hook seat 3, bearing pin 4, spring 5, screw 6, wrenching bar 7; Also can be made into fixing tooth plate 1 (see figure 9) of lateral pin, spring 5 is very convenient with the curved (see figure 4) of spring steel wire, and this just can save screw 6 (see figure 3)s; The tooth plate 1 that the flank of tooth is complete is conveniently made same integrally-built four parts with wrenching bar 7 certainly and is constituted (see figure 3); Certainly the also handy steel band of spring 5 is bent (see figure 5), and this will use screw 6.Clearly, the utility model can be made of four, five, six, seven parts respectively.

Architectural feature of the present utility model is the complete quick-wear part tooth plate of being convenient to install and remove 1 of geared surface and is furnished with the hook seat 3 that clamps the flank of tooth.Clamping flank of tooth direction on the hook seat 3: the teeth directional angle α of the clamping flank of tooth during with plane teeth equals 32 degree to 47 degree (see figure 1)s; Cambered surface clamps the orientation of tooth during with cambered surface, equals 32 degree are decided curved tooth to 47 degree home position O by teeth directional angle α equally ₁, O ₂, O ₃, O ₄, O ₅... (see figure 6), cambered surface clamp tooth and the flat grip tooth can both allow hook seat 3 rely on the effect of workpiece, produce and clamp torque M automatically, clamp the size of torque M automatically, determine (to see Fig. 1 by pivoted arm H and directed force F, Fig. 2, Fig. 3), different size has the value of different size.This is the technical characterictic of the utility model most important thing.

For allow on the hook seat 3 tooth too far pincers go into workpiece, the work crown on the hook seat 3 can between sky scabble a h value, the h value is got 0.15mm to 0.5mm (see figure 2).And, on the hook seat 3 medial surface neither bump in addition tooth plate 1 fluting, unstressed concentrated again, can satisfy requirement of strength fairing curved surface K1 (see Fig. 1, Fig. 2, Fig. 3); And also have on the wrenching bar 7 arc radius changeable, be convenient to join the fairing curved surface K2 that tooth plate 1 fashion satisfies requirement of strength (see Fig. 1, Fig. 2, Fig. 3).

Several sections annulus of spring 5 usefulness of the present utility model connect formation (seeing Fig. 4, Fig. 5) with Kongxiang between several sections straight-bars.Adopt annulus can improve the stress of spring 5, the rigidity of increase spring 5 is connected with the straight-bar that flexibility is arranged again, and complementing each other obtains very large deformation energy, the both available circular (see figure 4) of its shape of cross section, also available rectangle (see figure 5).

Clamping work of the present utility model is to implement like this: tooth plate 1 or with screw 2 or be fixed on the head of wrenching bar 7 with lateral pin 2, hook seat 3 is hinged with wrenching bar 7 by bearing pin 4, and can be around tooth plate 1 rotation, spring 5 one ends or be fixed in the screw on the wrenching bar 7 by screw 6, or directly insert in the hole of wrenching bar 7, the other end presses the back side of hook seat 3, and can slide on the back side of hook seat 3.When the head of hook seat 3 is run into workpiece, hook seat 3 is with regard to limit pressuring spring 5 sliding transfers, limit rotation is opened, allow in workpiece enters between the pinch zones of hook seat 3 and tooth plate 1, the clamping tooth on the hook seat 3 under the elastic force effect of spring 5 always near workpiece, when pressing Fig. 1, Fig. 2, Q shown in Figure 3 are when firmly pulling wrenching bar 7, and hook seat 3 just can rely on workpiece to lean on the clamping torque M of dispensing to come automatic clamping work pieces, tooth on the tooth plate 1 then complements each other and applies balanced action power to workpiece, changes so just pull workpiece.And oppositely just can skid during twisting and jump the limit, realize that sour jujube is stubborn.

Fig. 1 is fixing perpendicular to the screw 2 of the flank of tooth for tooth plate 1 usefulness of the present utility model, and spring 5 usefulness spring steel bands bend to, and is fixed on the wrenching bar 7 structure chart that is made of seven parts with screw 6.

The lateral pin 2 that Fig. 2 is parallel to the flank of tooth for tooth plate 1 usefulness of the present utility model locks, and bends to spring 5 with spring steel wire, directly is inserted in the aperture on the wrenching bar 7 structure chart that is made of six parts.

Fig. 3 makes same integral body for tooth plate 1 of the present utility model with wrenching bar 7, the structure chart that is made of ratch 1, hook seat 3, bearing pin 4,5 four parts of spring.If spring 5 usefulness steel bands are curved, will add screwing 6, become the structure of five parts.

The structure chart that Fig. 4 bends for spring 5 usefulness spring steel wires of the present utility model.

The structure chart that Fig. 5 bends for spring 5 usefulness spring steel bands of the present utility model.

Fig. 6 is the clamping flank of tooth on the hook seat 3 of the present utility model when adopting cambered surface to clamp tooth, and the orientation of the clamping tooth of cambered surface is by home position O ₁, O ₂, O ₃, O ₄, O ₅, determine that the method for determining still equals the structure chart of 32 degree to 47 degree by teeth directional angle α.

Fig. 7 is that tooth plate 1 of the present utility model has the structure chart perpendicular to the screw hole of the flank of tooth.

Fig. 8 cuts open schematic diagram for the rotation of Fig. 7 A-A.

Fig. 9 has the structure chart of the pin-and-hole that is parallel to the flank of tooth for tooth plate 1 of the present utility model.

Figure 10 is the generalized section of Fig. 9 B-B.

Claims

1, a kind of is to rely on the movable sour jujube of optimization self-regulated pipe vice of the work that clamps to twist spanner with the workpiece, it is characterized in that it is made up of tooth plate, lateral pin, hook seat, bearing pin, spring, screw, seven parts of wrenching bar.

2, the movable sour jujube of optimization self-regulated pipe vice according to claim 1 twists spanner, it is characterized in that the tooth plate flank of tooth is complete, mounting or dismounting are convenient, the direction character of the clamping flank of tooth on its hook seat is: the take up an official post angle of one or two tooth top line of working flank on the hook seat during each clamping work pieces and hook seat equals 32 and spends to 47 degree, sky scabbled 0.15mm to 0.5mm between tooth top was characterised in that on its hook seat, the architectural feature of its hook seat inboard be by neither bump wrenching bar head flank of tooth fluting, do not have the fairing curved surface that arc stress concentrates again and constitute.Do the time spent when the utility model only is subjected to terrestrial gravitation, the fit clearance value of the fairing curved surface of the flank of tooth of its tooth plate and its hook seat is between the 1mm to 4mm.

3, twist spanner according to claim 1, the movable sour jujubes of 2 described optimization self-regulated pipe vices, its architectural feature is spring with several sections annulus formation that links to each other with several sections mutual unoccupied places of straight-bar, and shape of cross section both can be annulus, also can be rectangle.